What's the plural form of mandarinism? Here's the word you're looking for.
Answer
The noun mandarinism can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be mandarinism.
However, in more specific contexts, the plural form can also be mandarinisms e.g. in reference to various types of mandarinisms
or a collection of mandarinisms.
Examples
And those who disdained free verse would always be open to accusations of elitism, mandarinism.